Hi Mike, thank you for comments.
Could you, please, add a section about Heat requirements for guest agents to the https://etherpad.openstack.org/p/UnifiedAgents? BTW The initial idea was to have some kind of skeleton for building guest agents with pluggable transports (message queue, http, meta server, etc.) and pluggable command handlers to solve all possible requirements from all projects interested in using guest agents. Thank you. Sincerely yours, Sergey Lukjanov Savanna Technical Lead Mirantis Inc. On Nov 25, 2013, at 10:34 PM, Mike Spreitzer <mspre...@us.ibm.com> wrote: > I am sorry I missed that session, but am interested in the topic. This is > very relevant to Heat, where we are working on software configuration in > general. I desire that Heat's ability to configure software will meet the > needs of Trove, Savanna, and Murano. > > At IBM we worked several Hadoop examples, with some similar to (but distinct > from) Heat for software configuration and also something doing holistic > infrastructure scheduling (so that, e.g., we could get locally attached > storage). The software was described using an additional concept for > software components, and we expressed the automation as chef roles. For > coordination between VMs we used Ruby metaprogramming to intercept access to > certain members of the node[][] arrays, replacing plain array access with > distributed reads and writes to shared variables (which can not be read until > after they are written, thus providing synchronization as well as data > dependency). We used ZooKeeper to implement those shared variables, but that > is just one possible implementation approach; I think wait > condition/handle/signal makes more sense as the one to use in OpenStack. > > The current thinking in Heat is to make a generic agent based on > os-collect-config; it could be specialized to Heat by a hook. The agent > would poll for stuff to do and then do it; in the chef case, "stuff" could > be, e.g., a role in a cookbook. I think this could meet the requirements > listed on https://etherpad.openstack.org/p/UnifiedAgents > > Regards, > Mike_______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
_______________________________________________ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
